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Earth Is 'Lazy' When Forming Faults Like Those Near San Andreas
April 3, 2013 Some geoscientists have taken an uncommon, “Earth is lazy” approach to modeling fault development in the crust and it is providing new insights into how faults grow. In particular, this ... > full story -
Congestion in Earth's Mantle: Mineralogists Explain Why Plate Tectonics Stagnates in Some Places
March 31, 2013 Seismic measurements show that in some regions of the Earth's mantle, plate tectonics stagnates. The causes of the 'congestion' of the subducted plate are still unknown. In a new study, mineralogists ... > full story -
Asteroids, Comets and Meteors
Near-Earth Object Impacts
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New Evidence Ancient Asteroid Caused Global Firestorm on Earth
March 27, 2013 A new look at conditions after a Manhattan-sized asteroid slammed into a region of Mexico in the dinosaur days indicates the event could have triggered a global firestorm that would have burned every ... > full story -
Scientists Image Deep Magma Beneath Pacific Seafloor Volcano
March 27, 2013 Since the plate tectonics revolution of the 1960s, scientists have known that new seafloor is created throughout the major ocean basins at linear chains of volcanoes known as mid-ocean ridges. But ... > full story -
2011 Oklahoma Temblor: Wastewater Injection Spurred Biggest Earthquake Yet, Study Says
March 26, 2013 A new study is the latest to tie a string of unusual earthquakes, in this case, in central Oklahoma, to injection of wastewater underground. Researchers now say that the magnitude 5.7 earthquake near ... > full story -
A Tiny Grain Helps Reveal the History of a Rock
March 25, 2013 Researchers can use the mineral rutile to learn about rock types and their history. Two articles now present a new application of a method for more easily tracing the mineral ... > full story -
First Images Released from Newest Earth Observation Satellite
March 21, 2013 NASA and the Department of the Interior's U.S. Geological Survey (USGS) have released the first images from the Landsat Data Continuity Mission (LDCM) satellite, which was launched Feb. ... > full story -
Megavolcanoes Tied to Pre-Dinosaur Mass Extinction: Apparent Sudden Climate Shift Could Have Analog Today
March 21, 2013 Scientists examining evidence across the world say they have linked the abrupt disappearance of half of earth's species 200 million years ago to a precisely dated set of gigantic volcanic eruptions. ... > full storyMore: -
Can Intraplate Earthquakes Produce Stronger Shaking Than at Plate Boundaries?
March 20, 2013 New information about the extent of the 1872 Owens Valley earthquake rupture, which occurs in an area with many small and discontinuous faults, may support a hypothesis that these types of quakes ... > full story -
Scientists Discover 'Lubricant' for Earth's Tectonic Plates: Hidden Magma Layer Could Play Role in Earthquakes
March 20, 2013 Scientists have found a layer of liquefied molten rock in Earth's mantle that may be acting as a lubricant for the sliding motions of the planet's massive tectonic plates. The discovery may carry ... > full story
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